@article {2517,
	title = {key aspects of a novel undulated receiver for parabolic trough collectors},
	journal = { international solar energy society (ises) conference proceedings },
	year = {2017},
	url = {http://proceedings.ises.org/paper/swc2017/swc2017-0007-Demagh.pdf},
	author = {Y DEMAGH and A HACHICHA}
}
